* WHAT...Heavy snow and blowing snow expected. Plan on difficult travel conditions. Total snow accumulations of 12 to 18 inches, with localized amounts up to 24 inches, are expected.

* WHERE...Northwest San Juan Mountains and Southwest San Juan Mountains.

* WHEN...From 5 PM Sunday to 8 AM MST Tuesday.

* ADDITIONAL DETAILS...Winds gusting as high as 50 mph will cause widespread blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severewinter weather conditions are expected. If you must travel, keepan extra flashlight, food and water in your vehicle in case of anemergency. The latest road conditions for the state you arecalling from can be obtained by calling 5 1 1.

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Providing "weather, water cycle, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy."